| // Copyright 2022, The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| //! Exception handlers. |
| |
| use core::arch::asm; |
| use vmbase::{console::emergency_write_str, eprintln, power::reboot}; |
| |
| #[no_mangle] |
| extern "C" fn sync_exception_current() { |
| emergency_write_str("sync_exception_current\n"); |
| print_esr(); |
| reboot(); |
| } |
| |
| #[no_mangle] |
| extern "C" fn irq_current() { |
| emergency_write_str("irq_current\n"); |
| reboot(); |
| } |
| |
| #[no_mangle] |
| extern "C" fn fiq_current() { |
| emergency_write_str("fiq_current\n"); |
| reboot(); |
| } |
| |
| #[no_mangle] |
| extern "C" fn serr_current() { |
| emergency_write_str("serr_current\n"); |
| print_esr(); |
| reboot(); |
| } |
| |
| #[no_mangle] |
| extern "C" fn sync_lower() { |
| emergency_write_str("sync_lower\n"); |
| print_esr(); |
| reboot(); |
| } |
| |
| #[no_mangle] |
| extern "C" fn irq_lower() { |
| emergency_write_str("irq_lower\n"); |
| reboot(); |
| } |
| |
| #[no_mangle] |
| extern "C" fn fiq_lower() { |
| emergency_write_str("fiq_lower\n"); |
| reboot(); |
| } |
| |
| #[no_mangle] |
| extern "C" fn serr_lower() { |
| emergency_write_str("serr_lower\n"); |
| print_esr(); |
| reboot(); |
| } |
| |
| #[inline] |
| fn print_esr() { |
| let mut esr: u64; |
| unsafe { |
| asm!("mrs {esr}, esr_el1", esr = out(reg) esr); |
| } |
| eprintln!("esr={:#08x}", esr); |
| } |